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PCM Connector for Inputs and Outputs

PCM Connector for Inputs and Outputs 

Connector Index
PCM Connector A (50P)
PCM Connector E (80P)

PCM Connector A (50P) (female terminals) 

GHH539175Courtesy of HONDA, U.S.A., INC.
Terminal number Terminal name Description
1 Not used  
2 Not used  
3 Not used  
4 SO2HT (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (SENSOR 2) HEATER CONTROL) Drives secondary HO2S (Sensor 2) heater
5 FI_MAIN_RLY_CL- (PGM-FI MAIN RELAY 1/IGNITION COIL RELAY) Drives PGM-FI main relay 1 and ignition coil relay
6 *1 VSV (EVAPORATIVE EMISSION (EVAP) CANISTER VENT SHUT VALVE) Drives EVAP canister vent shut valve
7 +B_BACKUP_FI-ECU (VOLTAGE BACK UP) Power source for PCM memory
8 FI_MAIN_RLY_OUT (POWER SOURCE) Power source for PCM
9 Not used  
10 LIN(BATT_SENSOR) (LOCAL INTERCONNECT NETWORK) Sends and receives communication signal
11 FUEL_PUMP_RLY_CL- (IMMOBILIZER FUEL PUMP RELAY) Drives PGM-FI main relay 2
12 Not used  
13 FI_ECU_GND (GROUND) Ground for PCM
14 Not used  
15 ST_CUT_RLY1_CL- (STARTER CUT RELAY 1) Drives starter cut relay 1
16 FI_SUB_RLY_OUT (POWER SOURCE) Power source for PCM

*1: USA/Canada models

Terminal number Terminal name Description
17 FAN_LO_SIGNAL (RADIATOR FAN RELAY) Drives radiator fan relay
18 FAN_HI_SIGNAL (A/C CONDENSER FAN RELAY/FAN CONTROL RELAY) Drives A/C condenser fan relay and fan control relay
19 ST_RLY_1_TO_2 (STARTER CUT RELAY RETURN SIGNAL) Detects starter cut relay signal
20 PF-CAN C_L (CAN COMMUNICATION SIGNAL LOW) Sends and receives communication signal
21 PF-CAN C_H (CAN COMMUNICATION SIGNAL HIGH) Sends and receives communication signal
22 Not used  
23 ST_CUT_RLY2_CL- (STARTER CUT RELAY 2) Drives starter cut relay 2
24 Not used  
25 FI_SUB_RLY_CL- (PGM-FI SUBRELAY) Drives PGM-FI subrelay
26 STOP_SW (BRAKE PEDAL POSITION SWITCH) Detects brake pedal position switch signal
27 SCS (SERVICE CHECK SIGNAL) Detects service check signal
28 STS (STARTER SWITCH SIGNAL) Detects starter switch signal
29 Not used  
30 Not used  
31 Not used  
32 APS1 (ACCELERATOR PEDAL POSITION (APP) SENSOR A) Detects APP sensor A signal
33 PD_SENSOR (A/C PRESSURE SENSOR) Detects A/C pressure sensor signal
34 APS2 (ACCELERATOR PEDAL POSITION (APP) SENSOR B) Detects APP sensor B signal
35 VSP (VEHICLE SPEED SIGNAL OUTPUT) Sends vehicle speed signal
36 PF-CAN A_L (CAN COMMUNICATION SIGNAL LOW) Sends and receives communication signal
37 PF-CAN A_H (CAN COMMUNICATION SIGNAL HIGH) Sends and receives communication signal
38 PF-CAN B_L (CAN COMMUNICATION SIGNAL LOW) Sends and receives communication signal
39 PF-CAN B_H (CAN COMMUNICATION SIGNAL HIGH) Sends and receives communication signal
40 S-NET (SERIAL COMMUNICATION FOR IMMOBILIZER) Sends serial communication signal
41 Not used  
42*1 PTANK (FUEL TANK PRESSURE (FTP) SENSOR) Detects FTP sensor signal
43 SG5 (SENSOR GROUND) Sensor ground
44 VCC5 (SENSOR VOLTAGE) Provides sensor reference voltage
45 VCC4 (SENSOR VOLTAGE) Provides sensor reference voltage
46 SG4 (SENSOR GROUND) Sensor ground
47 SO2 (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (SENSOR 2)) Detects secondary HO2S (Sensor 2) signal
48 SO2_SG (SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S) (SENSOR 2) SENSOR GROUND) Sensor ground for secondary HO2S (Sensor 2)
49 BKSWNC (BRAKE PEDAL POSITION SWITCH) Detects brake pedal position switch signal
50 Not used  

*1: USA/Canada models

PCM Connector E (80P) (female terminals) 

GHH539176Courtesy of HONDA, U.S.A., INC.
Terminal number Terminal name Description
1 Not used  
2 Not used  
3 Not used  
4 Not used  
5 Not used  
6 Not used  
7 Not used  
8 Not used  
9 Not used  
10 Not used  
11 Not used  
12 Not used  
13 AFHT (AIR FUEL RATIO (A/F) SENSOR (SENSOR 1) HEATER CONTROL) Drives A/F sensor (Sensor 1) heater
14 Not used  
15 Not used  
16 Not used  
17 Not used  
18 INJ1 (No. 1 INJECTOR) Drives No. 1 injector
19 INJ4 (No. 4 INJECTOR) Drives No. 4 injector
20 INJ3 (No. 3 INJECTOR) Drives No. 3 injector

*1: USA/Canada models

Terminal number Terminal name Description
21 INJ2 (No. 2 INJECTOR) Drives No. 2 injector
22 PG (GROUND) Ground for PCM
23 PG(COIL) (GROUND) Ground for PCM
24 GND2 (GROUND) Ground for PCM
25 Not used  
26 Not used  
27 MTR1 (THROTTLE ACTUATOR) Drives throttle actuator
28 MTR2 (THROTTLE ACTUATOR) Drives throttle actuator
29 Not used  
30 Not used  
31 ACC (A/C COMPRESSOR CLUTCH RELAY) Drives A/C compressor clutch relay
32 CAM (CAMSHAFT POSITION (CMP) SENSOR B) Detects CMP sensor B signal
33 Not used  
34 KS_GND (KNOCK SENSOR GROUND) Sensor ground for knock sensor
35 KNOCK (KNOCK SENSOR) Detects knock sensor signal
36 IG1(MONI) Detects ignition signal
37 IGN01 (No. 1 IGNITION COIL PULSE) Drives No. 1 ignition coil
38 IGN02 (No. 2 IGNITION COIL PULSE) Drives No. 2 ignition coil
39 IGN03 (No. 3 IGNITION COIL PULSE) Drives No. 3 ignition coil
40 IGN04 (No. 4 IGNITION COIL PULSE) Drives No. 4 ignition coil
41 Not used  
42 Not used  
43 TDC (CAMSHAFT POSITION (CMP) SENSOR A) Detects CMP sensor A signal
44 CRANK (CRANKSHAFT POSITION (CKP) SENSOR) Detects CKP sensor signal
45 SG6 (SENSOR GROUND) Sensor ground
46 VTC_EX (VTC OIL CONTROL SOLENOID VALVE B) Drives VTC oil control solenoid valve B
47 Not used  
48 IP (AIR FUEL RATIO (A/F) SENSOR (SENSOR 1) IP CELL) Detects A/F sensor (Sensor 1) pump cell
49 Not used  
50 THL1 (THROTTLE POSITION (TP) SENSOR A) Detects TP sensor A signal
51 THL2 (THROTTLE POSITION (TP) SENSOR B) Detects TP sensor B signal
52 TW (ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1) Detects ECT sensor 1 signal
53 TA (INTAKE AIR TEMPERATURE (IAT) SENSOR) Detects IAT sensor signal
54 TW2 (ENGINE COOLANT TEMPERATURE (ECT) SENSOR 2) Detects ECT sensor 2 signal
55 Not used  
56 PB (MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR) Detects MAP sensor signal
57 Not used  
58 OPSEN (ENGINE OIL PRESSURE SENSOR) Detects engine oil pressure sensor signal
59*1 POIL (ROCKER ARM OIL PRESSURE SENSOR) Detects rocker arm oil pressure sensor signal
60 Not used  
61 FGP (MASS AIR FLOW (MAF) SENSOR) Detects MAF sensor signal
62 Not used  
63 VCC6 (SENSOR VOLTAGE) Provides sensor reference voltage
64 VTC_IN (VTC OIL CONTROL SOLENOID VALVE A) Drives VTC oil control solenoid valve A
65 VTS (ROCKER ARM OIL CONTROL SOLENOID) Drives rocker arm oil control solenoid
66 Not used  
67 ATP_ST (TRANSMISSION RANGE SWITCH P/N POSITION) Detects transmission range switch P/N position signal

*1: USA/Canada models

Terminal number Terminal name Description
68 Not used  
69 Not used  
70 VCC1 (SENSOR VOLTAGE) Provides sensor reference voltage
71 SG1 (SENSOR GROUND) Sensor ground
72 Not used  
73 VS (AIR FUEL RATIO (A/F) SENSOR (SENSOR 1) VS CELL) Detects A/F sensor (Sensor 1) VS cell
74 VCENT (AIR FUEL RATIO (A/F) SENSOR (SENSOR 1) VIRTUAL GROUND) Provides reference voltage for A/F sensor (Sensor 1)
75 VCC3(DBW) (SENSOR VOLTAGE) Provides sensor reference voltage
76 SG3(DBW) (SENSOR GROUND) Sensor ground
77 VCC2 (SENSOR VOLTAGE) Provides sensor reference voltage
78 SG2 (SENSOR GROUND) Sensor ground
79 Not used  
80 PCS (EVAPORATIVE EMISSION (EVAP) CANISTER PURGE VALVE) Drives EVAP canister purge valve

*1: USA/Canada models